" One day you are caught in the fire of love. It is beautiful and sad at the same time. Once you are captured by the hands of love, there's no way out. Your love story might start at this very moment, ......are you sure you're ready? These are love stories about the young middle/high school children who are troubled with love. Who's gonna knock your heart out?"

From Aerandria Scans:

Suzuhara Mugi is a fifteen-year-old on a mission. She is determined to somehow get onto the campus of Shoukei High School, one of those super super elite high schools. This school is huge and private and has tight security. Mugi is searching for her missing sister--her only remaining family--and she has been led to believe that someone or something on the campus of that school will help her in her search.

Unfortunately, that strict school security is preventing her from getting onto the school grounds. However, her luck changes when she literally runs into Midou-kun, the son of an insanely rich mega-corporation president, and elite person at the school.

Midou is not impressed with Mugi’s sob story about needing to get into the school. He is a very smug and arrogant rich guy. But he can be reasonable, and he eventually strikes up a deal with Mugi--he will get her onto the school grounds in exchange for some labor on her part. She must come to his house and work as a maid! Yeah, this is one of those servant girl stories, but there are a few interesting twists, namely the unexpected way Midou gets Mugi into the school.

Includes oneshot Baby Love in volume 1
Includes oneshot My Fiendly Robot in volume 5

From Yaoi Is Life:

Volume 1 :
Inside a crowed train, a punk boy, You, is for some reason protected by a (dotekaku kakkou ii) B-boy. The B-boy, Makino, carries away with him a precious ‘stone’ that You had unknowingly dropped. He comes to ask You, who had ended up moving in Makino’s home after much confusion, if he has any memory of himself. Has he met Makino is the past?! You was is shock, but…

From Chibi Manga:

At 17-year-old, I didn't know anything about life or love. And I didn't see my cousin as a "man"...
I dont want to know anything, but love changed everything...

From Tokyopop:
When freshman transfer Mokichi arrives at Swan Academy High, he's got a chance to start over with a clean slate. He's got a plan, too. Kick the butts of the toughest guys in school, prove himself to be the baddest dude around, and run the whole shebang. Problem is, it's his butt that gets kicked that first day. Completely humiliated, Mokichi joins the Wrestling Club in hopes of learning to fight. There he meets unlikely allies, Tamako and Higuchi, two of the hottest battle babes to ever roll their sweaty bods over Swan Academy's gym mats. And Mokichi's gonna need all the friends he can get, what with the likes of the Karate Club looking to "break in" the new kid in the worst way possible.

From K.I.S.S.:
Shinichirou would rather spend his life playing games on the internet, but sadly he's a heir to a company. His grandfather deems his current life-style unfit for a heir, so he throws him into a house with eight young and beautiful girls. What's more, within one year he'll have to choose one of them as his bride. What will happen to him now?

Sekine is the captain of the judo team. His friend and roommate Kosakai is popular novelist. They both attend school and seem to be pretty close. Tamura Maiko is a member of the judo team and she fell in love with the one of them. A love triangle follows.

A collection of one-shots publlished between 2007-2008 published on various magazines and the Nisekoi pilot chapter:

1. Island (2007, Akamaru Jump)
For the last 400 years, an island has been completely surrounded by walls, isolated from the rest of the world. Aira and Marue have always dreamed of voyaging outside the walls, where lies a devastating truth unbeknownst to them.

2. Koi no Kami-sama (2007, Weekly Shonen Jump)
Tsuchibe Taichi, a boy who loves shoujo manga and believes in love above all else, ironically has the worst luck in love. His latest attempt in love is at the new transfer student, but a strange otherworldly force seems to be repelling him from her.

3. Williams (2007, Weekly Shonen Jump)
William is a young boy who idolizes Aradoff, a character from a popular novel which told Aradoff's adventures, and always dreams of having a grand adventure on his own. William's meeting with the novel author finally puts him on an adventure to prove that the novel is not merely a fiction.

4. Personant (2008, Jump SQ)
In the year 3333, everyone wears personants, technologically advanced masks, to maintain equality and peace, because they eliminate the "differences" in people that lead to discrimination and conflict. It has been 100 years since the government implemented this "personant system," so society has adapted. Yet one man exists as the only one in the world without a personant: the wanted criminal Damore!

5. Apple (2008, Young Magazine)
The main character (the blond ponytailed guy - yeah, guy) is Aramiya Satoshi, whose main ability is shape-shifting into any animal... though at some point he has plants growing out of him, so he is able shape-shift into any living thing. I'm not sure if he was naturally born that way or if he was a biological experiment. Anyway, he's a pretty easy-going guy who just wants to be left alone to enjoy his solitary life in the middle of a junkyard, but apparently some army or another is always after him because of his ability. Luckily, he is able to fight off entire tank battalions before breakfast.

6. Nisekoi (pilot chapter - 2011, Jump Next!)

Collection of short stories:

1. Hajimete, Kudasai.

2. Idol-sama no Okiniiri
Niina is a 3rd rate performer in a school for idols. One day, with all her luck, she manages to hurt the arm of the top of the top idols - Takashiro Asuka. Will her life come to an abrubt end after this mistake, or will it...?
- From Shoujo Sense

3. Ano Natsu Kara Zutto.
"While I went to a certain course, the summer of my third year, by chance I saw the baseball field. And while watching you try to hit the ball, you caught my heart."
"One year later, I've found you again..."

4. Gouriki Ikka no Owarinaki Tousou

5. Kimi no Tonari de Natsumatsuri

6. Kimi no Kokoro ni Kaoridzuke

A side story of Mahouka Koukou no Rettousei that focuses on Shiba Tatsuya's younger sister's viewpoint and experiences of the events taking place in the main story.

A world full of secrets, where one person keeps it form another. A young girl with a dark past transforms herself into a person she is nothing like before. Caught between affairs and scandals, her life is filled with one too many secrets to keep.

Natsumi just lost her younger sister, Haru to chemotherapy. As her sister's coffin finally closes for the last time she whispers "wait for me until I join you", but Haru's finace, Tougo has other plans which might mend both their hearts.

A homeroom teacher, Mr. Chiharu Ayatsuji, the relationship between us two is absolutely a secret at school! Yet, the teacher tends to get out of hand at school. A devil and a pervert!

He may be scum but it sort of makes my heart beat. I wonder if thats a little bad.

Jumping from the third floor classroom, biting and scratching others - Kii is just like a wild animal. Can Rihito, the new transfer student, tame her?

Eighth Research is a large biotech company based on advanced research and development of DNA manipulation. Naoya Graphico is on the security team for the company run by his uncle. Naoya has been acknowledged for his high combat skills and is sent on top secret missions regarding Eighth Research interests.

His most recent task has Naoya infiltrating a rival company where a mysterious girl named Celcia has been kidnapped. Naoya's passion for protecting the weak always helps him accomplish missions; he just needs to make sure his libido doesn't get in the way.

From Hoshikuzuu Scans:

As the only son of a trading firm, Asakura Michitada enters the dormitory at an all-boys school. There, he is put in the same room as his childhood friend and only person he could trust, Tachibana. But for Asakura, their reunion is something of a more complicated nature.

Note: The magazine and tankobon have different versions of the epilogue.

Tomioka Yuji is a 32-year-old night-shift guard for a mall. He works completely alone, so he often slacks off, exercising and hanging out on the roof. In some ways, the job is perfect for him, as he's always been terrible with people. However, he can't help feeling incredibly lonely and wishing he had friends.
One night, he makes a wish for friendship on a falling star. Shortly after, he finds a strange note left at the door of the mall. It says, "within a year, you'll go mad and die." After this, his solitary life begins to change--some ways for the better, and some for the worse. At work, he notices an ominous silhouette in a nearby apartment building, watching him neglect his job.
Who is the mysterious figure? Who sent him the creepy note, and why?

In the Alice in Junk Box series:

V.1 - Alice in Junk Box

V.2 - Dia

English Titles
Vol. 1: Alice in the Country of Hearts: Junk Box
Vol. 2: Alice in the Country of Diamonds: Junk Box Diamonds

From Aerandria Scans:

Who am I? I'm Gi-ryum, a tall, handsome bachelor, and the coolest guy in the country who even makes O△ sama (Reference to "Yon-sama": Bae, Yon-Jun from Winter Sonata) cry at my beauty. One day, I received classified info of the princess enrolling in a regular high school. Huhuhu. Can I snag the princess with my irresistible beauty?! I will be the king's new son-in-law!

In order to live by his principles of never losing a fight, high schooler Kanzaki Ryousuke will run from everything to win! …or at least that’s what he wants to do. Even though he always tries stay away from trouble, he saves his classmate Ikasa Kaede from a fight. Will Kaede be able to steal Ryousuke’s heart with his piercing gaze…? Suddenly, the transfer student Amano Fumi who made a promise to marry Kaede appears?! A heart pounding school love story about their unripe love! A second volume about Fumi and the playboy Zono’s perverted times together and rough sketches included!